KOCISZEWSKI, Karol; SZUBSKA-WŁODARCZYK, Natalia. The level of organic farming productivity in selected EU countries. Economics and Environment, Poland, v. 86, n. 3, p. 417–435, 2023. DOI: 10.34659/eis.2023.86.3.623. Disponível em: https://ekonomiaisrodowisko.pl/journal/article/view/623.. Acesso em: 2 jan. 2025.